A new_____ bus service to Tianjin Airport started to operate two months ago．
| A．normal | B．usual | C．regular | D．common |
The meeting ________ in the hall tomorrow is about environment protection.
| A．is being held | B．to be held | C．held | D．being held |
_________ teachers are present today, and __________ them is 300.
| A．A great many; a number of | B．A number of; the number of |
| C．A dozen of; a great many | D．The number of; a number of |
— You don’t forget when we borrowed that reference book, do you?
— I can’t remember now but ________ sometime last week?
| A．might it be | B．could it be |
| C．could it have been | D．should it have been |
Mr. Johnson complained to his doctor that he lacked energy, so his doctor advised him to ________running.
| A．lacked; take up | B．lacked of; pick up |
| C．was lacking of; make up | D．was in lack; give up |
— What about ______supper that we had in that restaurant last week?
— Well, ____ most worst one indeed.
| A．不填；the | B．不填；a | C．the; the | D．the; a |